EP 2986039 B1 20200219 - DOWNLINK INFORMATION SENDING AND RECEIVING METHODS, BASE STATION, AND USER EQUIPMENT
Title (en)
DOWNLINK INFORMATION SENDING AND RECEIVING METHODS, BASE STATION, AND USER EQUIPMENT
Title (de)
VERFAHREN ZUM SENDEN UND EMPFANGEN VON DOWNLINK-INFORMATIONEN, BASISSTATION UND BENUTZERVORRICHTUNG
Title (fr)
PROCEDES D'ENVOI ET DE RECEPTION D'INFORMATIONS DE LIAISON DESCENDANTE, STATION DE BASE ET EQUIPEMENT UTILISATEUR
Publication
Application
Priority
CN 2013075197 W 20130506
Abstract (en)
[origin: EP2986039A1] The present invention relates to a downlink information sending method and receiving method, a base station, and user equipment. The sending method includes: allocating a cell radio network temporary identifier C-RNTI and an extension identifier to first user equipment UE, where a combination of the extension identifier and the C-RNTI is used to identify the first UE; notifying the first UE of the C-RNTI and the extension identifier; scrambling downlink control information DCI of the first UE by using the C-RNTI; and sending the scrambled DCI, where the scrambled DCI carries the C-RNTI and the extension identifier, so that the first UE communicates with a network according to the DCI when determining that the notified C-RNTI and the C-RNTI in the scrambled DCI are the same and the notified extension identifier and the extension identifier carried in the DCI are the same; or sending a Medium Access Control control element MAC CE and the scrambled DCI, where the MAC CE carries the extension identifier, so that the first UE communicates with a network according to the DCI when determining that the notified C-RNTI and the C-RNTI in the scrambled DCI are the same and the notified extension identifier and the extension identifier carried in the MAC CE are the same. UE is identified by using a combination of a C-RNTI and an extension identifier, to achieve an objective of distinguishing the UE. Compared with the prior art in which UE is distinguished by using a C-RNTI, more UEs can be distinguished, and a problem that an existing C-RNTI cannot satisfy a requirement for distinguishing UEs of highly dense users is resolved. Therefore, a problem that C-RNTIs in a cellular communications system are insufficient is resolved, so that a capacity of a wireless communications network can be expanded to accommodate more users.
IPC 8 full level
H04W 72/12 (2009.01); H04W 8/26 (2009.01); H04W 72/04 (2009.01)
CPC (source: CN EP US)
H04W 8/26 (2013.01 - CN EP US); H04W 72/0446 (2013.01 - US); H04W 72/23 (2023.01 - US)
Citation (examination)
"3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Evolved Universal Terrestrial Radio Access (E-UTRA); Multiplexing and channel coding (Release 11)", 13 March 2013 (2013-03-13), XP050696639, Retrieved from the Internet <URL:http://www.3gpp.org/ftp/tsg_ran/WG1_RL1/DRAFT/> [retrieved on 20130313]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2986039 A1 20160217; EP 2986039 A4 20160406; EP 2986039 B1 20200219; CN 104488294 A 20150401; CN 104488294 B 20180907; US 2016066303 A1 20160303; US 9820271 B2 20171114; WO 2014179922 A1 20141113
DOCDB simple family (application)
EP 13884250 A 20130506; CN 2013075197 W 20130506; CN 201380001769 A 20130506; US 201514934975 A 20151106